Intel AS/400 RISC Server, 170 Servers, 7xx Servers manual POWER6 520 57B8/57B7 6 RAID5 Dasd in CEC

The POWER6 520 and 550 also have an external SAS port, that is controlled by the 57B8/57B7, used to connect a single #5886 - EXP 12S SAS Disk Drawer which can contain up to 12 SAS DASD. Below is a chart showing the addition of the #5886 - EXP 12S SAS Disk Drawer.

	POWER6 520 57B8/57B7 6 RAID5 DASD in CEC 12 RAID5 DASD in EXP 12S SAS Disk Drawer
	POWER6 520 57B8/57B7 6 RAID5 DASD in CEC
	0.25
(sec)	0.2
Time	0.15
Response	0.1
	0.05
System
	0
	0	500	1000	1500	2000	2500	3000	3500	4000	4500	5000
					Workload Throughput

		POWER6 520 57B8/57B7 6 RAID5 DASD in CEC 12 RAID5 DASD in EXP 12S SAS Disk Drawer
		POWER6 520 57B8/57B7 6 RAID5 DASD in CEC
Time		10
Response	(MS)	8
		6
DASD		4
		2
		0
		0	1,000	2,000	3,000
			Ops/Sec

IBM i 6.1 Performance Capabilities Reference - January/April/October 2008
© Copyright IBM Corp. 2008	Chapter 14 DASD Performance	211